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| -rw-r--r-- | README.md | 10 |
1 files changed, 9 insertions, 1 deletions
@@ -171,7 +171,15 @@ if (status.ok()) { `Input`s are expected to come in a *stream*, starting with a `kDown` event, followed by zero or more `kMove` events, and ending with a `kUp` event. If the modeler is given out-of-order inputs or duplicate inputs, it will return -`absl::InvalidArgumentError`. +`absl::InvalidArgumentError`. `Input.time` may not be before the `time` of the +previous input. + +`Input`s are expected to come from a single stroke produced with an input +device. Extraneous inputs, like touches with the palm of the hand in +touch-screen stylus input, should be filtered before passing the correct input +events to `Update`. If the input device allows for multiple strokes at once (for +example, drawing with two fingers simultaneously), the inputs for each stroke +must be passed to separate `StrokeModler` instances. The `time` values of the returned `Result` objects start at the `time` of the first input and end either at the time of the last `Input` (for in-progress |